* Andrew Morton <[email protected]> wrote:
> Am trying to do a git-disect on it but it seems that someone has been
> screwing with ata Kconfig and I'm hitting a pile of
> cant-find-root-disk bisection points and I can't immediately work out
> why. I'll try to find time to look at it again next week.
the way i solve such bisection problems is to have the patch like below
applied by a "git-bisect run" scriptlet (and popped off after the test).
This way all must-have drivers and kernel features are selected for that
particular testbox, no matter what Kconfig complication there are.
(except outright config option renaming but those are rare)
Ingo
Index: linux/arch/x86/Kconfig.needed
===================================================================
--- /dev/null
+++ linux/arch/x86/Kconfig.needed
@@ -0,0 +1,88 @@
+config FORCE_MINIMAL_CONFIG
+ bool
+ default y
+
+select EXPERIMENTAL
+
+select EXT3_FS
+select EXT3_FS_XATTR
+select EXT3_FS_POSIX_ACL
+select EXT3_FS_SECURITY
+select BLOCK
+select HOTPLUG
+#select INOTIFY
+#select INOTIFY_USER
+
+# so that capset() works (sudo, etc.):
+select SECURITY
+select SECURITY_CAPABILITIES
+
+select BINFMT_ELF
+select MSDOS_PARTITION
+select PARTITION_ADVANCED
+select BSD_DISKLABEL
+
+select SYSFS
+select SYSFS_DEPRECATED
+select PROC_FS
+select FUTEX
+
+select ATA
+select SATA_AHCI
+select ATA_PIIX
+select PATA_AMD
+select PATA_OLDPIIX
+select BLK_DEV_SD
+
+select E100
+select E1000
+select NET_ETHERNET
+select NET_PCI
+select MII
+select CRC32
+
+select 8139TOO
+select FORCEDETH
+
+select PACKET
+
+select NETPOLL
+select NETCONSOLE
+select NET_POLL_CONTROLLER
+select INET
+select NET
+select UNIX
+select NETDEVICES
+
+select SERIAL_8250
+select SERIAL_8250_CONSOLE
+select MAGIC_SYSRQ
+
+select INPUT
+select INPUT_MOUSEDEV
+select INPUT_POLLDEV
+select INPUT_KEYBOARD
+select KEYBOARD_ATKBD
+select SERIO
+select SERIO_I8042
+
+select VT
+select VT_CONSOLE
+select HW_CONSOLE
+select VGA_CONSOLE
+select EARLY_PRINTK
+select PRINTK
+select UNIX98_PTYS
+
+select USB
+select USB_MOUSE
+select USB_EHCI_HCD
+select USB_OHCI_HCD
+select USB_UHCI_HCD
+select USB_SUPPORT
+
+select PCI
+
+select STANDALONE
+select PREVENT_FIRMWARE_BUILD
+
Index: linux/lib/Kconfig
===================================================================
--- linux.orig/lib/Kconfig
+++ linux/lib/Kconfig
@@ -142,3 +142,6 @@ config CHECK_SIGNATURE
bool
endmenu
+
+source "arch/x86/Kconfig.needed"
+
Index: linux/lib/Kconfig.debug
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